Abstract

The operation of spin torque devices is based on the phe nomenon of spin torque transfer. If a currentis passed through a magnetization layer, called the fixed layer, it will come out spin polarized. This spin (which is angular momentum) will be added to the magnetization in a next magnetic layer, called the fixed layer, and will cause its precession. In the end, if the current exceeds a certain critical value (given by the magnetic material and its environment) the magnetization will be Switched by a pulse of current, typically in about 1 nanosec ond.

Date

April 15, 2014

Authors

DE Nikonov, GI Bourianoff, AP Jacob

Inventors

Dmitri E Nikonov, George I Bourianoff, Ajey P Jacob

Patent_office

US

Patent_number

8697454

Application_number

13901807